Type-mold.



No. 691,6l9. Patented Jan; 2|, 1902'. H. J. s. GILBE'RT-STBINGER; TYPE MOLD."

(Application filed. Dec. 10, 1900.) (No Model.) 3 Sheets-Sheet I.

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N0. 69l,6l9. Patented Ian. 2|, 1902.

H. J. S. Gl LBERT-STRINGER. TYPE MOLD.

(Application filed Dec. 10, 1900.)

3 Sheets-Sheet 2.

(No Model.)

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No. 69|,6|9. Pdtented ]an. 2|, I902.

H. J. s GlLBERT-STRINGER.

TYPE MOLD. I

'Application filed Dec. 10, 1900.) I (No Model.) a Sheets-Sheet s.

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w 51; J25. cadkrazn'z er UNITED STATES PATENT OFFICE.

HENRY JAMES SYDNEY GILBERT-STRINGER, OF LONDON, ENGLAND.

TYF E-MOLD.

SPECIFICATION forming part of Letters Patent No. 691,619, dated January 21, 1902. Application filed December 10, 1900. Serial No. 39,379. (No model.)

To aZZ whom, it may concern.

Be it known that I, HENRY JAMES SYDNEY GILBERT-STRINGER, a citizen of England, residing at 35 Tavistock Crescent, Westbourne Park, London, England, have invented a certain new and useful Improvement in Type- Molds, (for which I have applied for a patent in Great Britain, dated November 20, 190(), No. 20,953,) of which the following is a speci-' fication.

In what are known as self finishing type-casting machines and in some type cast-' ing and composing machines the set width of the molded type is governed by an adj ustable body-plunger of the body size and shape of the type and its jet, which after the cast is made delivers the type from the 'mold. The types when so delivered have their jets attached to them, and these have to be broken ofi, and cutters have to be employed to make heel-nicks in the feet of the types.

My invention has for its object an improvement in the construction and arrangement of a type-mold of this kind such that the types after being delivered in line in the order of their casting require only the jets to bebroken off, the rupture taking place within the feet of the types, thus dispensing entirelywith heel-nicking and apparatus for that purpose.

I shall describe a mold according to my invention, referring to the accompanying drawlugs.

Figure 1 is a front view. Fig. 2 is a vertical section on the line 2 2 of Fig. 1 looking from the left side. Fig. 3 is a sectional plan on line 3 .3 of Fig. 2, the parts 0, b, and g being removed. Fig. 4 is a vertical section on the line 4 4 of Fig. 1. Fig. 5 is a Vertical section on the line 5 5 of Fig. 1. Fig. 6 is an enlarged view of part of the mold with the foot of the type and its jet in the mold. Fig. 7 is a perspective View of the top block 0 and attached side plate e. Fig. 8 is a perspective View of the mold with the body-plunger d and top block 0 and its attached side plate e removed to show the fixed cores g and g, arranged to project into the foot of the type-mold proper. Fig. 9 illustrates the modification according to which the side plate e moves while a is stationary, and Fig. 10 illustrates the position of d and 6 when a type has been cast and extruded. Fig. 11 is a perspective view, and

.Fig. 12 is a transverse section, of the plunger.

The mold carried upon a supporting-bracket u consists of the following parts:

i is a back plate to which are attached all.

openings through which the pump-nozzle h and nozzle-plate 1'- are advanced to close that end of the mold.

g and g are separate pieces attached to t and having sloping margins which extend into and form cores in the foot of the typemold proper, the open space between these pieces permitting of the passage of the metal and forming of a jet when casting.

The plates 1) and a form the back wall of the mold, the block a the bottom, the block 0 the top, theplate e, which is attached to c, the left side wall, while the right side wall is formed by the body-plunger d and the front end by a matrix (not shown) suitably applied thereto. The top piece 0, which has attached to it the left side wall e, is caused to move vertically by means of a rod 0, fixed to the upper side of the block 0 and reoiprocated by any suitable means, and e is extended toward the back, so that it projects or extends V61: tically at a right angle to the ends of the parts g, g, 11, 0t, and 0, thus forming the left-hand .wall of the mold and the jet part of the mold.

Thus the left wall of the mold being stationary it is only necessary to secure variability of set width of type to adjust the body-piece d (which is slidable horizontally on a and between 9 and g) in any one of the methods ordinarily employed in type casting and composing machines, one example of which is to be found in my United States Patent No. 642,441; but this is not here shown further than the broken connecting-rod y, because it forms no part of my present invention. For the same reason the actuating mechanism to move the top piece 0, side wall e, and rod m is not included in the drawings.

w is a guide-piece used to prevent displacement of d.

The top and bottom pieces 0 and a have cooling-cavities q,connected to pipes g to permit circulation of water for cooling. A continuation of the parts a, g, a, b, and 9, commencing immediately to the left of the line of descent of e, furnishes with a cover-plate r a channel of the shape of the jet and type into which the casting can be pushed by the body-piece d. The end of the body-piece d is the same shape as the type with its jet. Beyond the mold on the left hand there is a Vertically-sliding rod m for breaking 01f the jets, and still farther on the left there is a bracket n, on which is placed a setting-stick or galley p to receive the advancing line of types.

The apparatus operates as follows: The parts 0 and 6 having been lowered until the type-mold portion of e rests upon a, and at being at the requisite distance from c to leave an opening the size of the desired type, a matrix (not shown) is applied at the front end fof the mold. A jet of metal is injected from the nozzle h, casting a type and its jet. The matrix is then withdrawn, after which the top piece a and side wall 6 are raised, leaving the left side of the mold open. The bodyplunger d being then advanced to the left extrudes the type and jet, leaving it in the channel under the cover-plate r. The bodyplunger then returns to the right-hand position ready for a succeeding type to be cast. Each type as it is cast advances those previously delivered in the channel a distance equal to its own set width, and when the jets come successively under the rod m, the typebodies then beinginclosed inachannel formed between a and r, but having their jets projecting rearward, the rod m descends and breaks off the jets, the fracture being formed along a rough line 8, Fig. 6, where the metal is weakest and the blow has greatest leverage. Each type is thus left with a notch in its foot having two sloping sides formed by the projecting parts of-g and g.

It would be possible to vary the mold without departing from the spirit of this invention in so far as that 0 may be stationary, the only moving parts of the mold being e and (2, as shown in Figs. 9 and 10.

I am aware that type-molds have been used having cores to obviate heel-nicking, (as, for instance,is described in the United States Patent No. 356,749;) but these have all been what are known as pivotal molds, and from their form are utterly incapable of delivering their products in lines in the order of casting, as is essentially requisite in type casting and composing machines.

Having thus described the nature of this invention and the best means I know of carrying the same into practical effect, I claim In a type-casting mold, the combination with stationary core-pieces projecting into the foot of the mold, of a movable and adjustable body-plunger shaped in cross-section to correspond to the shape of the said core-pieces, said body-plunger being constructed and arranged to first determine the set width of the type and to subsequently extrude the cast type from the mold, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witmesses.

HENRY JAMES SYDNEY GILBEltT-STRINGER.

Witnesses:

GERALD L. SMITH, EDWARD GARDNER. 

